34494978 has 64 divisors (see below), whose sum is σ = 82575360. Its totient is φ = 9398592.

The previous prime is 34494959. The next prime is 34494979. The reversal of 34494978 is 87949443.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (34494979) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 154575 + ... + 154797.

It is an arithmetic number, because the mean of its divisors is an integer number (1290240).

Almost surely, 2^34494978 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 34494978, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41287680).

34494978 is an abundant number, since it is smaller than the sum of its proper divisors (48080382).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

34494978 is a wasteful number, since it uses less digits than its factorization.

34494978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391.

The product of its digits is 870912, while the sum is 48.

The square root of 34494978 is about 5873.2425456472. The cubic root of 34494978 is about 325.5257069699.

The spelling of 34494978 in words is "thirty-four million, four hundred ninety-four thousand, nine hundred seventy-eight".